/* Accessibility Enhancements */

/* Skip to Content Link */
.skip-to-content {
    position: absolute;
    top: -100px;
    left: 0;
    background: var(--color-primary);
    color: white;
    padding: var(--space-3) var(--space-5);
    text-decoration: none;
    z-index: 10001;
    border-radius: 0 0 var(--radius-md) 0;
    font-weight: 600;
    transition: top 0.2s ease;
}

.skip-to-content:focus {
    top: 0;
    outline: 3px solid var(--color-primary-light);
    outline-offset: 2px;
}

/* Focus Visible Indicators */
*:focus-visible {
    outline: 2px solid var(--color-primary);
    outline-offset: 2px;
    border-radius: var(--radius-sm);
}

/* Remove default focus for mouse users */
*:focus:not(:focus-visible) {
    outline: none;
}

/* Enhanced focus for interactive elements */
a:focus-visible,
button:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible {
    outline: 2px solid var(--color-primary);
    outline-offset: 2px;
    box-shadow: 0 0 0 4px rgba(217, 119, 6, 0.2);
}

/* Form Error Messages with ARIA */
.form-error {
    color: var(--color-error);
    font-size: 0.875rem;
    margin-top: var(--space-2);
    display: block;
}

.form-error[aria-hidden="true"] {
    display: none;
}

/* Input with error state */
input.error,
select.error,
textarea.error {
    border-color: var(--color-error);
    border-width: 2px;
}

input.error:focus-visible,
select.error:focus-visible,
textarea.error:focus-visible {
    outline-color: var(--color-error);
    box-shadow: 0 0 0 4px rgba(220, 38, 38, 0.2);
}

/* Screen Reader Only Text */
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border-width: 0;
}

/* High Contrast Mode Support */
@media (prefers-contrast: high) {
    .btn {
        border: 2px solid currentColor;
    }
    
    .toast {
        border: 2px solid currentColor;
    }
}

/* Reduced Motion */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }
}

/* Ensure sufficient color contrast */
.text-muted {
    color: var(--color-text-muted);
}

/* Ensure interactive elements are keyboard accessible */
[tabindex="-1"]:focus {
    outline: none;
}

/* Loading states for screen readers */
.loading[aria-busy="true"]::after {
    content: "Loading...";
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border-width: 0;
}